api-client-go/client.go
2018-02-27 13:51:19 +03:00

113 lines
2.2 KiB
Go

package retailcrm
import (
"encoding/json"
"errors"
"fmt"
"io/ioutil"
"net/http"
"net/url"
"strings"
"time"
)
const (
ApiPrefix = "/api/v5"
)
type Client struct {
Url string
apiKey string
httpClient *http.Client
}
type ErrorResponse struct {
ErrorMsg string `json:"errorMsg,omitempty"`
Errors map[string]string `json:"errors,omitempty"`
}
func New(url string, apiKey string) *Client {
return &Client{
url,
apiKey,
&http.Client{Timeout: 20 * time.Second},
}
}
func (r *Client) GetRequest(urlWithParameters string) ([]byte, int, error) {
var res []byte
req, err := http.NewRequest("GET", fmt.Sprintf("%s%s%s", r.Url, ApiPrefix, urlWithParameters), nil)
if err != nil {
return res, 0, err
}
req.Header.Set("X-API-KEY", r.apiKey)
resp, err := r.httpClient.Do(req)
if err != nil {
return res, 0, err
}
if resp.StatusCode >= http.StatusInternalServerError {
return res, resp.StatusCode, errors.New(fmt.Sprintf("HTTP request error. Status code: %d.\n", resp.StatusCode))
}
res, err = buildRawResponse(resp)
if err != nil {
return res, 0, err
}
return res, resp.StatusCode, nil
}
func (r *Client) PostRequest(url string, postParams url.Values) ([]byte, int, error) {
var res []byte
req, err := http.NewRequest(
"POST",
fmt.Sprintf("%s%s%s", r.Url, ApiPrefix, url),
strings.NewReader(postParams.Encode()),
)
if err != nil {
return res, 0, err
}
req.Header.Set("Content-Type", "application/x-www-form-urlencoded")
req.Header.Set("X-API-KEY", r.apiKey)
resp, err := r.httpClient.Do(req)
if err != nil {
return res, 0, err
}
if resp.StatusCode >= http.StatusInternalServerError {
return res, resp.StatusCode, errors.New(fmt.Sprintf("HTTP request error. Status code: %d.\n", resp.StatusCode))
}
res, err = buildRawResponse(resp)
if err != nil {
return res, 0, err
}
return res, resp.StatusCode, nil
}
func buildRawResponse(resp *http.Response) ([]byte, error) {
defer resp.Body.Close()
res, err := ioutil.ReadAll(resp.Body)
if err != nil {
return res, err
}
return res, nil
}
func (r *Client) ErrorResponse(data []byte) (*ErrorResponse, error) {
var resp ErrorResponse
err := json.Unmarshal(data, &resp)
return &resp, err
}